Latch for gates and the like



J. T. MMR.

LATCH FOR GATES AND THE UKE. M'ILICAHON FILED APR. H, I91? 1,324,428. Patented Dec. 9,1919.

Arrow/ v of'thecatch; therebyn'ot only relea'sin the:

UNITED STATES PATENT OFFICE.

JOHN THOMAS mam, 0F summarise, mass. WELLmG'roN, NEW znanmn.

LATCH FOR earns AND THE LIKE.

ipeciflcation of Letters Patent.

Patented Dec. 9, 1919.

Application filed ilbfll 11, 1917. Serial No. 161,172.

To all whom it may concern:

Beit ltnown-that I, JOHNTHOMAS Main, subiect of the King of Great Britain and Ireland, residing at Main Road, Khan'darlah, near the city of Wellington, injthe Dominion of New Zealand, have invented a new and useful Ini pavement in Latches for Game and the li e; and I do hereby declare the Toll-owing to be a full, clear; anti exact desert tionof'thesaine.

Thi invention relates to latches for gates and the like.

The object of the invention is to provide a latch which willbe certain in its action and simple in construction.

In this invention a aivoted gravity catch is so constructed that the' lockingpart therek of may be lifted for the'pnrpose of opening the-gate by operating-a leverfwhie'h has a cam'aetion and with which the catch inter locks. Both the lever and the catch revert tothe closed position by g vity. A further featiz're is the construction otthe lever in such a way that the action of closing'the gate by movingtlre striker past the catch br' s the striker into contact with an arm of t e lever hereinafter termed a trigger whereby'the catch is, incle emlently' oTthe action of gravity,com;ilete 3 closed through the action of thelever. When the lever is opera-ted for the purpose of ope'nin the gate this ar angement cause the stricer'to be carried reward beyonil the locking-position striker'froni the eatchbut also' pushiir the gate open. Ifidesired"tle"l evermay be upperateclf by a push roehopsr'a ting against the trigger whereb the gate-maybe" opened i from the outsi ea Proi isionfis' also fniade fen loekingthe (latch in a closed fpositiowhy means of a separate rock:

"The invention is illustrated hythe aqcemg and 1 8 thereof. '1

ini parts of the lateh iii closed ition.

' 1g; s ism-sectional view" 1 *ewing tlie w'orkm'g parts of the latch in ah 'open' posi' 'e'l isa perspeeti vewgiew cf-the tionand also showing the method of openin the latch by means of a push rod.

eferrin to the drawings, 1 is the frame, 2 is the catch which is pivoted near the front and bottom of the frame,3 is the lever which is pivoted near the rear of the frame, and at is the striker.

The frame 1 is made with a portion of the front cut away to form the shoulder 5 upon which the lever 3 rests when the latch is closed. Holes are bored in'the frame to receive rivets Band 7 and holes 8 are bored in the flanges 9 ofthe frame to receive screws for fixing the latch to the post.

The catch 2, is pivoted on the rivet and is formed with a projection 10 shaped as shown. This projection 10fits intofa recess 11 in the lever 3. The lever 3is pivoted on the rivet. 7 and is formed with a projection- 12 which fitsa recess 13 and operatestheren with a calm action for the purpose ofopenmg the catch 2.

against the locking edge 14 of the catch brings the catch down to. its locked position apart from gravity. The catch has also a the gate open when the lever 3 is lifts Thecxten'ded arm 16 is so shaped asto ong' ge 'the catch 2 and limit its revolutionin an npware direction; f

In operation when it is desired to open the gateaheilever 3 is emma by rinsing the l-lS' action brin the The cam faces are so shaped that the pressure of the-striker working-gens to the position showman Fig.

6 whem the 'strikerbeyond: the lockili'g point or as catch.:'

In fi there isshown aanethoci of eratin" he" latch by mean-s01? a splin he catch an Fiifted clear of the sti iiter awhile the trigger 17 has pnshel screwed upon the outer end of the rod while a coil spring 22 is in compression between the button and the end of a sleeve 23 as clearly shown. This slprin normally allows the latch to remain c ose Upon resslng the button 21, the end of the rod pus es forward the trigger l7 raises the catch and throws the striker clear of the locking portion of the catch.

A shoulder 25 is formed on the to of the lever so as to be co-incident with t 1e slots 26 in the frame when the latch is closed. The bolt of a separate lock or other device inserted in the slots 26 behind the shoulder 25 will prevent the revolution of the lever 3 and thus lock the device.

The striker a is preferably offset or deformed to clear the trigger 17 when the gate is closed as clearly indicated in Fig. 3 and is fixed by screws in holes 27.

lVhat I claim is 1. In a latch, a pivoted gravity catch, a striker adapted to operate said catch upon its closing movement, a pivoted gravity lever having at its rear end a downwardly extending lever against which the striker engages, cam faces upon the upper edge of said catch, and cam faces upon the lower edge of said lever interlockin with said cam faces of said catch in error a inafiner that the movements of said catch and said lever are synchronous, substantially as described.

2. In a latch, a frame, a gravity catch pivoted near the front end of said frame and having a striking face upon its lower side, a striker adapted to raise the said catch upon its closing movement, said catch falling by gravity immediately said striker has passed it and thereby retaining the striker, a gravity lever pivoted at its rear end only and near the rear of said frame said lever having at its rear end a downwardly extending lever against which the striker engages, a curved recess in the upper edge of said catch, and a cam PIOjfiOtlOII on the lower ed of said lever engaging said tecem where y when said lever is lifted said projection will carry the said catch upward with ;a radial movement in order to clear the said striker, substantially as described.

,111 a latch, ,anframe, a gravit catch pivoted near the front end of sai frame and having a striking face upon its lower edge, a striker adapted to raise the said catch upon its closing movement, said catch falling (by gravity immediately said striker has passed it and therelby retaining the striker, a gravity lever pivoted at its rear endonly and near the rean of said frame said lever having at its rear end a downwardly extending lever against which the striker engages, a curved recess in the upper edge of said catch, a cam projection upon the lower edge of said gravity lever engaging said recess in said catch whereby the said catch and the said lever move synchronously, substantially as described.

4. In a latch, a frame, a gravity catch pivoted near the front end of said frame and having a striking face upon its lower edge, a striker adapted to raise the said catch upon its closing movement, said catch falling by gravity immediately said striker has passed it and thereby retaining the striker, a gravity lever pivoted at its rear end only and near the rear of said frame said lever having at its rear end a downwardly extending lever against which the striker en ages, a curved recess in the upper side of said catch, a cam projection upon the lower side of said gravity lever engaging said recess in said catch, a recess in the lower side of said lever, and a cam projection on said catch en aging said recess in said lever, substantia y as set forth.

5. In a latch, a pivoted gravity catch, a striker adapted to operate said catch upon its closing movement, a pivoted gravity lever having at its rear end a downwardly extending lever against which the striker engages, cam faces upon the upper edge of said catch, cam faces on the lower edge of said lever interlocking with said cam faces of said catch in such a manner that the movements of said catch and said lever are synchronous, the rear end of said lever upon its under edge being shaped to receive the said catch and limit its revolutions in an upward direction, substantially as described.

6. In a latch, a pivoted gravity catch, a striker adapted to operate said catch upon its closing movement, a pivoted gravity lever having at its rear end a downwardly extending lever against which the striker engages, cam faces upon the upper edge of said catch and cam faces upon the lower edge of said catch interlockin ,with said cam faces of said catch in sue a manner that the movements of said catch and said lever are synchronous, combined with a push-rod which engages and operates said is raised, and an extended arm to the rear,

end of said lever against which the said striker is adapted to engage whereby -the said eabfih is returned to :its closed position through the intervention of said lever, independently of gravity, substantially as set orth.

8. In a. latch, is pivoted gravity catch, a

striker adapted to operate. said catch, -a

pivoted gravity lever interlocking with said catch in such a manner that the said catch may be lifted by operating the said lever, the rear end of said lever formed with a downwardly extending arm against which the said striker engages, and a push rod in engagement with said downwardly extending arm whereby the said catch is raised by operating said rod.

9. In a latch, a pivoted gravity catch, a striker adapted to operate said catch upon its closing movement, a pivoted gravity lever, cam faces upon the upper edge of said catch, and cam faces u n the lower edge of said lever interlocking with said cam faces of said catch in such a manner that the movements of said catch and said lever are synchronous, a shoulder u on said lever, and slots in said frame wit which said shoulder is coincident whereib the belt of a separate lock ma be inserte in said slots and behind said oulder, substantially as set forth. v

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN THOMAS MAIR.

Witnesses:

SYDNEY H. HIGGS, E. P. ODoNNnLL. 

